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DISPLAYING 1 to 11 (of 11 products)
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91110700805
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Engine oil pump

porsche

Fits:
Porsche 911 3.0L (SC) 1977-83
Porsche 911 3.2L 1984-89
Porsche 911 3.0L Carrera 1976-77*
Porsche 930 3.0L Turbo*

*Requires extra part No. 93010190200 Lid

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Diagram Ref No 1.

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91110700805
91110700805
1613100200

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91110700805/1
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Engine oil pump

oematch

Fits:
Porsche 911 3.0L (SC) 1977-83
Porsche 911 3.2L 1984-89
Porsche 911 3.0L Carrera 1976-77*
Porsche 930 3.0L Turbo*

*Requires extra part No. 93010190200 Lid

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Diagram Ref No 1.

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91110700805
PS9314
91110700805
1613100200

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90110712100
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Oil pump drive shaft.

porsche

Fits:
Porsche 911 1965-89
Porsche 930 3.0L Turbo 1975-77
Porsche 914-6 1970-76

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Diagram ref no 6

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90110712100
90110712100

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99970417250
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Oil pump seal ring. 19.5 x 26
Sold each.

porsche

Fits:
Porsche 911 1965-89
Porsche 914-6 1970-76
Porsche 964 1989-94
Porsche 993 1995-98
Porsche 996 Turbo / GT2 2001-05
Porsche 996 GT3 3.6L 1999-05
Porsche 997.1 Turbo 3.6L 2007-10
Porsche 997.2 Turbo  3.6L 2011-13
Porsche 997 GT3 3.6L / 3.8L / 4.0L 2007-13

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Diagram ref no  3

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99970417250
99970417250

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99970417250/1
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Oil pump seal ring. 16,3 x 22
Sold each.

Fits:
Porsche 911 1965-89
Porsche 914-6 1970-76
Porsche 964 1989-94
Porsche 993 1995-98
Porsche 996 Turbo / GT2 2001-05
Porsche 996 GT3 3.6L 1999-05
Porsche 997.1 Turbo 3.6L 2007-10
Porsche 997.2 Turbo  3.6L 2011-13
Porsche 997 GT3 3.6L / 3.8L / 4.0L 2007-13

Diagram ref no  4

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99970417250
99970417250

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99970417350
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Oil pump seal ring. 19.5 x 26
Sold each.

porsche

Fits:
Porsche 911 1965-89
Porsche 914-6 1970-76
Porsche 964 1989-94
Porsche 993 1995-98
Porsche 996 Turbo / GT2 2001-05
Porsche 996 GT3 3.6L 1999-05
Porsche 997.1 Turbo 3.6L 2007-10
Porsche 997.2 Turbo  3.6L 2011-13
Porsche 997 GT3 3.6L / 3.8L / 4.0L 2007-13

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Diagram ref no  3

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99970417350
99970417350

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Oil pump seal ring. 19.5 x 26
Large oil pump seal ( 19.5 x 26 mm) designed to exact Porsche specifications, this seal ensures a perfect fit between the oil pump and the engine block.
Sold each.

Fits:
Porsche 911 1965-89
Porsche 914-6 1970-76
Porsche 964 1989-94
Porsche 993 1995-98
Porsche 996 Turbo / GT2 2001-05
Porsche 996 GT3 3.6L 1999-05
Porsche 997.1 Turbo 3.6L 2007-10
Porsche 997.2 Turbo  3.6L 2011-13
Porsche 997 GT3 3.6L / 3.8L / 4.0L 2007-13

Diagram ref no  3

This component is an oil seal, often referred to as the “large oil pump / oil cooler seal.” Its job is to prevent oil from leaking at the joint between the oil pump (or oil cooler housing) and the engine block or other mating surface. It maintains pressure integrity within the oil circuit, preventing external leakage and loss of oil. A proper oil seal helps protect surrounding engine components (gaskets, housings) from oil contamination and keeps the lubrication system efficient.

Location: Mounted at the interface of the oil pump or oil cooler to the engine block — typically around a rotating shaft or coupling.
Function: Provides a leak-proof seal for high-pressure oil flow between engine and pump housing
Installation: Direct-fit OE replacement — replace whenever the pump or cooler is removed
Maintenance Tip: Always replace during engine rebuilds or if any oil seepage is detected near the cooler or pump area

Why replacement matters:
Over time, the original seal can harden, crack, shrink, or wear due to heat, pressure cycles, vibration, and exposure to oil and contaminants.
  A compromised seal allows oil to leak, reducing oil level, lowering system pressure, and potentially causing damage to engine internals.
  Even small oil leaks can lead to oil contamination of belts, hoses, or nearby components, making clean-up costly and potentially damaging.
  Replacing with a high-quality replacement seal restores full sealing integrity, ensuring proper oil circuit function, preventing leaks, and protecting the engine’s internals.

When to replace:
  Whenever the oil pump or oil cooler is removed for maintenance, repair, or rebuild — always replace the seal rather than reuse an old one.
  If you detect oil seepage or external leaks near the pump / cooler area, or during engine inspections.
 During major engine overhauls, rebuilds, or upgrades, especially in older or high-mileage engines.
 As preventive maintenance in high-stress or high-boost applications, where oil pressure and temperature are elevated.

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99970417350

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99903900100
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Oil pump tab washer.
Oil pump tab washer designed to secure and lock the oil pump fastener on classic Porsche engines. Although small, this locking washer plays a critical role in preventing oil pump hardware from loosening due to engine vibration and repeated heat cycles.

Fits:
Porsche 911 1965 - 1986
Porsche 911 Turbo 1975 - 1977
Porsche 914 1970 - 1976

Diagram ref no 4

By acting as a mechanical locking device, it helps keep the oil pump firmly in position, supporting stable oil pressure and reliable engine lubrication. Proper retention of the oil pump is essential for long-term engine protection and performance.

Tab washers are intended to be bent into place once. Reusing a previously bent washer can cause metal fatigue and reduced holding strength, increasing the risk of fasteners backing out. Replacing the washer during service is a simple, low-cost way to safeguard engine reliability and prevent premature wear.

When to replace:
During oil pump removal, refit, or engine rebuild
  If the washer tab has been previously bent or straightened
  When cracking, distortion, or fatigue is visible
  Any time oil pump fasteners are loosened during maintenance

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99903900100
99903900100

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99903900100/1
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Oil pump tab washer.
Oil pump tab washer used to secure and lock the oil pump fastener in place on classic Porsche engines. It’s a simple but important locking washer designed to prevent the oil pump hardware from loosening due to engine vibration and heat cycles.

Fits:
Porsche 911 1965 - 1986
Porsche 911 Turbo 1975 - 1977
Porsche 914 1970 - 1976

Diagram ref no 4

It acts as a mechanical locking device for oil pump hardware, reducing the risk of fasteners backing out over time. By keeping the oil pump assembly secure, it supports consistent oil pressure and dependable engine lubrication.

Tab washers are designed to be bent into position - and once bent, they can fatigue or lose holding strength if reused. A weakened or reused tab washer can allow oil pump hardware to loosen, which may contribute to oil pressure issues and accelerated engine wear. Replacing it during service is cheap insurance for engine reliability.

When to replace:
•  During oil pump removal/refit or engine rebuild work
•  If the existing washer tab has been previously bent/straightened
•  Visible cracking, distortion, or fatigue around the tab
•  Any time oil pump hardware is loosened as part of maintenance

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99903900100

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99970113550/1
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O-ring R15x2,5 - Used in various positions
Sold each

Fits:

Porsche 914 - 1970 to 1976
Porsche 911 - 1965 to 1989
Porsche 993 - 1994 to 1998


Used on Sportomatic oil pump for 911 and 914
Used on Power Steering pump for 993


Diagram ref no 8 and 16 



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99970113550
99970113550

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90012314430
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Seal ring washer. Size - A10 x 13.5

porsche

Fits:
Porsche 911 - 1978 to 1989
Porsche 964 - 1989 to 1994
Porsche 996 - 1998 to 2005
Porsche 997.1 - 2005 to 2008
Porsche 986 Boxster - 1997 to 2004
Porsche 928 - 1978 to 1995
Porsche 958 Cayenne - 2011 to 2018
Porsche 970 Panamera - 2010 to 2016
Porsche 95B Macan - 2014 to 2018

Aluminium seal washer - has various applications depending on model

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90012314430
90012314430

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DISPLAYING 1 to 11 (of 11 products)
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About Oil Pumps & Gaskets

Engine Oil Pumps & Gaskets – Essential Components for Porsche Lubrication Systems

The engine oil pump is the heart of your Porsche’s lubrication system. It maintains the correct oil pressure and flow throughout the engine, ensuring that every moving component receives consistent lubrication for smooth operation and long-term durability. Paired with precision-engineered oil pump gaskets, these components prevent leaks and maintain pressure integrity — critical for performance and reliability.

At Design911, we stock a wide range of high-quality engine oil pumps and sealing gaskets designed for Porsche engines across all generations. Constructed from heat-resistant alloys and advanced sealing materials, these parts are built to deliver dependable oil circulation under demanding road and track conditions. Whether you’re performing a complete rebuild or servicing your engine, our manufacturer-quality oil pumps and gaskets ensure flawless performance and long-term protection.

What Do Engine Oil Pumps & Gaskets Do?

The oil pump works continuously to circulate engine oil, maintaining consistent pressure across all internal systems. The accompanying gaskets ensure that no oil escapes during this process.

Core Functions:

  • Circulate and pressurise oil to protect internal engine components.
  • Prevent metal-on-metal contact, reducing friction and wear.
  • Maintain optimal oil pressure during all operating conditions.
  • Seal the pump and associated components to prevent oil leaks.
  • Support temperature regulation through stable oil flow.

Together, oil pumps and gaskets are the backbone of your engine’s lubrication and cooling efficiency.

Why Do Oil Pumps & Gaskets Fail?

Over time, wear, contamination, and heat cycles can compromise the performance of both the oil pump and its seals.

Common Causes of Failure Include:

  • Internal wear of pump gears or rotors from oil contamination.
  • Loss of pressure due to clogged oil passages or relief valve faults.
  • Gasket hardening or cracking from prolonged heat exposure.
  • Oil leaks caused by worn seals or improper installation.
  • Low oil levels or infrequent maintenance, accelerating wear.

Symptoms of failure may include low oil pressure warnings, unusual engine noise, overheating, or oil leaks, all of which indicate the need for inspection and replacement.

Why Replace Oil Pump Components?

Replacing a failing oil pump and gasket is essential for maintaining correct oil pressure and preventing catastrophic engine damage. Our precision-engineered replacement parts are built for strength, longevity, and seamless integration into Porsche engines.

Key Benefits:

  • Restores consistent oil pressure and flow.
  • Prevents leaks and maintains optimal lubrication.
  • Protects engine components from friction and overheating.
  • Constructed from durable, heat-resistant materials.
  • Direct-fit compatibility for Porsche classic and modern models.
  • Ideal for rebuilds, performance upgrades, or preventive maintenance.

Installing a new oil pump and gasket set ensures your Porsche’s engine operates at peak efficiency and reliability, whether for daily use or spirited driving.

Highlights:

  • Precision-engineered oil pumps and sealing gaskets for Porsche engines.
  • Ensures reliable oil circulation and pressure control.
  • Prevents leaks with advanced sealing materials.
  • Heat- and wear-resistant for long-term performance.
  • Perfect for rebuilds, upgrades, or maintenance servicing.
  • Compatible with air-cooled and water-cooled Porsche models.

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